本题目来源于试卷: Physics Unit6: Work and Energy，类别为 国际高中通用物理
[单选题]
Compared to yesterday, yqfv n( c lq(o1up9m/-wou did 37t kz,s-4cqd2 w byojpj28 x6s times the work in one-third the time. To do so, ytsdqwo22 7b8 kx6szjyc4 jp, -our power output must have been
A. the same as yesterday's power output.
B. one-third of yesterday's power output.
C. 3 times yesterday's power output.
D. 9 times yesterday's power output.
参考答案: D
本题详细解析:
暂无
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